Substack’s founders have responded to Twitter’s new restrictions on promoting tweets with links from the publishing platform, telling The Verge that writers’ livelihoods “should not be tied to platforms where they don’t own their relationship with their audience, and where the rules can change on a whim.”
On Thursday night, Twitter users noticed that they couldn’t like, reply to, or retweet some tweets that had Substack links in them. Twitter hasn’t said why it made the change — or if the change was even intentional — but the timing is certa...